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    <meta charset="UTF-8">
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    <title>Document</title>
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<body>
    <h2>word-spacing</h2>
    <h3>没有加word-spacing的效果</h3>
    <p>
        this is a test
    </p>
    <h3>加了word-spacing的效果</h3>
    <p style="word-spacing: 100px;">
        this is a test
    </p>
    <h2>letter-spacing</h2>
    <h3>没有加letter-spacing的效果</h3>
    <p>
        this is a test
    </p>
    <h3>加了letter-spacing的效果</h3>
    <p style="letter-spacing: 100px;">
        this is a test
    </p>

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